Convert troy ounces to Sir (Persian)
Persia & Silk Road · Persian Weight · historical · colonial
Historically reconstructed The unit is no longer in use and its value is reconstructed from historical and scholarly sources — treat it as indicative.
1 troy ounce = 0.414713 Sir (Persian)
Sir (Persian) = troy ounces × 0.41471302
Convert any amount
troy ounces to Sir (Persian) table
| troy ounces | Sir (Persian) |
|---|---|
| 0.25 troy ounces | 0.103678 Sir (Persian) |
| 0.5 troy ounces | 0.207357 Sir (Persian) |
| 1 troy ounce | 0.414713 Sir (Persian) |
| 2 troy ounces | 0.829426 Sir (Persian) |
| 3 troy ounces | 1.24414 Sir (Persian) |
| 4 troy ounces | 1.65885 Sir (Persian) |
| 5 troy ounces | 2.07357 Sir (Persian) |
| 10 troy ounces | 4.14713 Sir (Persian) |
| 20 troy ounces | 8.29426 Sir (Persian) |
| 25 troy ounces | 10.3678 Sir (Persian) |
| 50 troy ounces | 20.7357 Sir (Persian) |
| 100 troy ounces | 41.4713 Sir (Persian) |
About the Sir (Persian)
1 Sir = 1/40 Man ≈ 75g. Used for spices and small goods.
- Symbol
- sir
- Value in SI
- 1 Sir (Persian) = 0.075 kilogram
- Typical use
- trade, cooking
- Source
- UnitConvertLab measurement atlas
Every atlas conversion routes through the SI kilogram. See our methodology and data provenance pages for how these values are sourced and verified.
Related units and variant risk
Other persian weight units in the Persia & Silk Road family, least settled first. If your figure came from a land record, invoice or historical document rather than a calculator, check these before assuming a single standard.
Related conversions
Frequently asked
How many Sir (Persian) are in a troy ounce?
1 troy ounce = 0.414713 Sir (Persian). Multiply the number of troy ounces by 0.41471302 to get Sir (Persian).
What is Sir (Persian) used for?
1 Sir = 1/40 Man ≈ 75g. Used for spices and small goods. It is classified as historical and dates from the colonial period.
Is the Sir (Persian) value exact?
Yes for practical purposes. UnitConvertLab converts every atlas unit through the SI kilogram, so the arithmetic itself introduces no rounding beyond the digits shown.
How reliable is this Sir (Persian) conversion?
Historically reconstructed — The unit is no longer in use and its value is reconstructed from historical and scholarly sources — treat it as indicative. Source: UnitConvertLab measurement atlas.
Cite this page
UnitConvertLab. (2026). Convert troy ounces to Sir (Persian). UnitConvertLab. Retrieved from https://unitconvertlab.com/regional/troy-ounce-si-to-sir-persian
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